Freelancer profile translated to English.
Back to original languageAbout Jonathan
INTRO
Do you have a website… but not yet a real tool to manage your business?
I develop Ruby on Rails applications, Stripe / Stripe Connect integrations, and business tools designed to automate, centralize, and scale your operations.
I regularly work on e-commerce projects, custom platforms, and applications connected to payment, invoicing, and business automation systems.
Today, many companies still rely on several scattered tools, manage time-consuming manual tasks, and waste time on repetitive processes, ultimately with little centralized visibility into their business, data, and performance.
My goal: to transform your website or application into a system that sells, collects, invoices, and automates.
WHAT I DO
I work on projects involving Stripe and Stripe Connect payment integration, custom business application development, management dashboards, internal tools, and process automation such as electronic invoicing, workflows, or synchronizations. I also assist in the redesign of existing tools, ensuring the construction of efficient, scalable, and technically sound solutions.
TYPES OF PROJECTS
I support the development of platforms with payment, SaaS solutions or marketplaces, custom e-commerce sites, internal tools, and management interfaces that centralize, automate, and structure business activities. I also work on projects requiring a clean, scalable architecture designed to support growth.
APPROACH
You explain your objective: to sell, collect, automate, centralize, or structure your business.
I design an adapted, clear, scalable, and results-oriented technical solution.
The idea: to make your website or application a real business lever, not just a showcase.
French
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Moonlight
On Malt
Support - Moonlight E-commerce - Phase 2PHARMACEUTICALS INDUSTRYApril 2026 - May 2026Phase 2 of support for the Moonlight project, evolving the e-commerce platform towards a first V1 usable by sales teams.Deployment of the Ruby on Rails application with domain name connection, server configuration, connection to an SQL database, and complete structuring of the technical environment.Development and improvement of internal business tools to transform the platform into a true sales management tool:Generation of quotes and invoices directly from the applicationInventory and e-commerce flow managementStructuring of user roles and back-office spacesCentralization of internal processesImplementation of Stripe Connect to prepare for future payment, collection, and financial automation workflows.Connection and configuration of ImageKit to optimize image management, loading, and distribution with a focus on performance and user experience.Work on the Ruby on Rails application architecture, improving maintainability, scalability, and overall platform performance.Active participation in technical scoping and structuring of future business developments for the project with a focus on automation, centralization, and scalability.Continuous support for the development team on back-end and front-end best practices, project technical organization, and skill development in Ruby on Rails, Stimulus, and the production environment.Implementation of a temporary maintenance page pending the final public version of the Moonlight platform. - MoonlightSupport - Moonlight E-commerce - Phase 1PHARMACEUTICALS INDUSTRYMarch 2026 - April 2026 (1 month)Nancy, FranceTraining and technical structuring of the Moonlight development team on a Ruby on Rails e-commerce project.Implementation of the application's foundations with a clear, maintainable, and scalable Rails architecture.Mentoring a junior developer with regular follow-up:
- Skill development inRuby on Rails
- Improvement of code quality (**CSS**, **JS**, application logic)
- Implementation of development best practices
Implementation of key services:*Stripeintegration for payments- Implementation of aCDNfor asset optimization
- Deployment and configuration onHeroku
Structuring the front-end with Stimulus andDartSassfor clean and scalable code.Participation in V1 scoping:- Prioritization of features
- Structuring of development steps
- Securing technical foundations
- Medico NantesWeb Developer – Website & Business Platform Redesign (Ruby on Rails)HEALTH AND WELLNESSDecember 2025 - January 2026 (1 month)Nantes, FranceComplete redesign of theMedico Nantesweb platform, replacing the oldWordPresssite with acustom Ruby on Railsapplication.The project was carried out in close collaboration with UX/UI designerSelina Landreau**, responsible for **mockupsand **visual identity**.My role involved designing and developing the technical architecture, integrating theUX/UImockups, and delivering areliable**, **performant**, and **scalablesolution.
Main interventions:
- MigrationWordPress→Ruby on Rails
- Integration ofUX/UImockups (desktop & mobile)
- Custom development andperformance**optimization**
- Implementation of anadministrable space
- Securedeploymentandhosting
The result is arobustbusiness platform, designed for longevity and to facilitate internal use.
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Education
- Web Application Designer-DeveloperLe Wagon2024Concepteur- développeur d'applications web
Certifications
- Web Application Designer – DeveloperLe Wagon2024